Security readout for executives and security teams
Plain-English summary
This flaw lets a local low-privileged Windows user turn access on a CylancePROTECT endpoint into SYSTEM-level control. The issue is tied to overly permissive write access in the Cylance log folder and how CyUpdate handles files there. Business urgency depends on whether older CylancePROTECT builds remain deployed.
Executive priority
Treat this as high priority if legacy CylancePROTECT exists in the estate. It can convert ordinary local access into full system control on an endpoint security agent, but the bundle does not support claims of remote exploitation or active abuse.
Technical view
CVE-2018-10722 affects CylancePROTECT before build 1470. Users had Modify access to %PROGRAMFILES%\Cylance\Desktop\log, and CyUpdate granted Modify access to new files in that folder. The CVE describes local privilege escalation through a symlink chain affecting an arbitrary DLL path used by CyUpdate.
Likely exposure
Exposure is limited to systems running CylancePROTECT before 1470 where an attacker already has local unprivileged access. The source bundle does not provide CPE data or a complete affected-platform matrix.
Exploitation context
The source bundle does not show CISA KEV listing or active exploitation. The vulnerability is local privilege escalation, so it is most relevant after phishing, malware execution, insider access, or compromise of a standard user account.
Researcher notes
The public description is specific about the vulnerable permission and CyUpdate behavior, but the bundle lacks CVSS, CWE, CPEs, and official vendor remediation text. Avoid over-scoping beyond CylancePROTECT before 1470 unless additional vendor evidence is reviewed.
Mitigation direction
- Inventory CylancePROTECT versions and identify systems before build 1470.
- Upgrade affected CylancePROTECT deployments to build 1470 or later if vendor guidance confirms applicability.
- Check vendor and BlackBerry/Cylance guidance for supported remediation details.
- Restrict standard user write access to sensitive agent directories where vendor-supported.
- Prioritize endpoints used by administrators, developers, and security staff.
Validation and detection
- Confirm installed CylancePROTECT build numbers across managed endpoints.
- Review permissions on %PROGRAMFILES%\Cylance\Desktop\log for non-admin Modify access.
- Check whether CyUpdate is present and running on affected hosts.
- Review endpoint telemetry for unusual CyUpdate DLL-loading behavior.
- Confirm remediation by rechecking version and directory permissions after update.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
CVE-2018-10722 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- Unknown
- CVSS
- Not scored
- Known Exploited
- No
- Published
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
CVSS and timeline data
No CVSS vectors or timeline events were available in the normalized CVE source material.
Source materials
- CVE List V5 sourceCVE List V5
- https://www.atredis.com/blog/cylance-privilege-escalation-vulnerabilityCVE reference · x_refsource_MISC
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.